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Evidence of homopolar bonds in chemically stoichiometric GexAsySe1-x-y glasses

Xu, Si-Wei; Wang, Rongping; Yang, Zhiyong; Wang, Li; Luther-Davies, Barry

Description

We prepared five samples of chemically stoichiometric GexAsySe1-x-y glasses in order to examine whether homopolar bonds exist in these glasses. It is generally accepted that the structure of these chemically stoichiometric glasses should be dominated by GeSe4/2 tetrahedra and AsSe3/2 pyramids with a negligible quantity of homopolar bonds. Analysis of Raman scattering and X-ray photoelectron spectra of the glasses indicates that, while glasses located at the center of the glass-forming region...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
URI: http://hdl.handle.net/1885/55902
Source: Applied Physics Express
DOI: 10.7567/APEX.8.015504

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